/*
 *  senderMulticast.c
 * sender.c -- multicasts "hello, world!" to a multicast group once a second*
 * Antony Courtney,	25/11/94
 */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <time.h>
#include <string.h>
#include <stdio.h>


#define HELLO_PORT 12345
#define HELLO_GROUP "225.0.0.37"

main(int argc, char *argv[])
{
	struct sockaddr_in addr;
	int fd, cnt;
	struct ip_mreq mreq;
	char *message="Hello, World!";
	
	/* create what looks like an ordinary UDP socket */
	if ((fd=socket(AF_INET,SOCK_DGRAM,0)) < 0) {
		perror("socket");
		exit(1);
	}
	
	/* set up destination address */
	memset(&addr,0,sizeof(addr));
	addr.sin_family=AF_INET;
	addr.sin_addr.s_addr=inet_addr(HELLO_GROUP);
	addr.sin_port=htons(HELLO_PORT);
	
	/* now just sendto() our destination! */
	while (1) {
		if (sendto(fd,message,sizeof(message),0,(struct sockaddr *) &addr,
				   sizeof(addr)) < 0) {
			perror("sendto");
			exit(1);
	  }
	  sleep(1);
     }
}

